Stacksync

What it is

Stacksync is a real-time, two-way data sync platform for enterprise systems and databases. It is aimed at engineering and operations teams who need a CRM, an ERP and a database to agree with each other without scheduled batch jobs. The company's pages say "Stacksync powers real-time and two-way sync between CRMs, ERPs and Databases", and its own comparison posts describe sub-second latency and change data capture. Around that core it now sells workflow automation, AI agents and event queues, so the product is a sync tool that has grown into a broader integration and automation platform.

What you build and how

The platform's navigation groups the product into four areas: two-way sync ("real-time, two-way sync between enterprise systems and databases"), workflow automation ("build, test and ship deterministic flows across your stack"), AI agents ("agents that read your knowledge base and call your enterprise apps") and event queues ("buffer and batch events at scale without managing Kafka"). A connector search lists Salesforce, HubSpot, NetSuite, Zendesk, Microsoft Dynamics 365 Sales, Dynamics 365 F&O, Attio, Pipedrive, Zoho CRM, Campfire, Rillet, Front, Shopify, Amazon Seller Central and SendGrid. The "popular pairs" shown are HubSpot with Supabase, Salesforce with Zendesk, HubSpot with Snowflake and NetSuite with HubSpot.

For the sync product, the company's comparison post says Stacksync provides "pre-built bidirectional connectors plus a SQL interface and webhooks", with visual mapping tools and built-in error handling, instead of general API management. The same post says it supports legacy databases (SQL Server, Oracle, IBM AS/400), on-premise ERPs and modern cloud applications. The practical result is that you point two systems at each other, decide which fields move, and let the platform keep both sides current rather than building one-way jobs in each direction.

The workflow side is where the "workflow-automation" shelf applies. The home page demonstrates an agent that turns an emailed purchase order into a NetSuite sales order: it reads the scanned PDF with OCR, matches the customer and 6 products in NetSuite with no duplicates, checks payment terms and finishes in 766 ms end to end. Other use cases shown include a wholesale and B2B portal where net-terms orders, price lists and approvals flow to the ERP "without manual rekey", and fraud signals where risk scores from Stripe Radar and Signifyd reach checkout and the CRM before fulfillment starts.

The AI layer is the most unusual part. The site describes a "Genie" as "an always-on AI worker that operates across your enterprise systems even when there is no API." Agents "own outcomes, set their own reminders, run multi-agent teams until the job is done, not only a chatbot." Where an app has no API, "Stacksync logs into a browser session, clicks through like a human, and finishes the job." You can ask in plain language, and the sample prompts include "Two-way sync between Salesforce and HubSpot", "A Genie that drafts Jira tickets from Slack threads" and "Push Stripe disputes into Zendesk with full order context." Requests can arrive from chat, email, Slack, Teams, SMS, WhatsApp or an API, and the example shows Claude and GPT among the models. The site says humans stay "in the loop, only when they are needed", with "full control, traceability, and security built in."

For connectors that do not exist yet, the site offers "Build any connector with AI agents": paste an app URL, and "agents read the docs, write the integration, and ship." A related banner reads "Describe what you want, agents plan it, write the code, and ship it to production."

Operations tooling is covered too. The page says the product can alert about record syncing issues over email, Slack, PagerDuty and WhatsApp, and that you can resolve issues from a centralized dashboard with retry and revert options. Connection options listed are OAuth 2, SSH tunnelling, SSL certificates, IP whitelisting, VPN gateway and VPC peering. The site also offers a free "2026 architecture guide" on real-time two-way sync, with reference architectures and conflict resolution patterns that survive schema drift.

The evidence from the pages

Pricing is the clearest figure. The company's comparison post says "Stacksync pricing starts at $1,000 per month based on active sync connections, with no per-row fees or hidden charges for data volume." In the same post it puts traditional middleware such as MuleSoft and Boomi at $10,000+ per month and modern iPaaS tools between $500 and $5,000 a month depending on volume. These are the vendor's own comparisons. The navigation has a Pricing page, but it is not among the pages held, so plan names and tiers beyond the starting figure are not stated here.

The home page says "No credit card · 14-day free trial · SOC 2 · HIPAA-compliant" and adds "Independently audited and certified across the security and privacy frameworks enterprise teams require." The page names SOC 2 and HIPAA compliance and gives no further audit detail. It claims "1,000+ native connectors."

Stacksync frames its edge in its own blog as "true real-time bidirectional sync with sub-second latency, flat pricing without per-row fees". It argues that MuleSoft, Boomi and Workato do not offer native real-time bi-directional sync, and that Boomi "can be configured for two-way data flows, but it does not provide native real-time" sync. Those comparisons describe competitors from Stacksync's point of view and should be read as such. In a Boomi comparison it says Boomi pricing is connector-based and that teams often report total cost of ownership above $50K per year.

A banner on the pages promotes a "Stacksync x Supabase" event in Miami on Oct 13, which tells you the company courts database-centric teams as well as CRM and ERP owners. The page does not state a customer count, a founding year or a headquarters location.

Who it suits and who it does not

Stacksync suits a team that treats consistency between systems as the product: a RevOps group keeping Salesforce and HubSpot aligned, finance keeping NetSuite and a CRM in agreement, or engineers who want operational data in a database such as Supabase or Snowflake that stays current in both directions. The agent-built connectors and plain-language prompts also help operations people who do not have an integration engineer, since the pitch is that an integration takes "a prompt" rather than months.

It is less obviously a fit for a solo founder or a small shop. The stated starting price is $1,000 a month, the language is enterprise throughout, and the builder experience is oriented to systems and data rather than to designing a customer-facing app or site. A team that wants an API gateway and governance across a whole application network would also look at the broader platforms the company compares itself with. Anyone planning to rely on the AI-built connectors should try one against their own app first, and the 14-day free trial is the place to do that.